Measure the specific heat capacity of ball bearings and state what material the ball bearings are made of.

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Specific Heat Capacity of ball bearings

Zaid Al-Radaideh


Aim

        The aim of this experiment is to measure the Specific Heat Capacity of ball bearings and to state what material is the ball bearings made of.

Hypothesis

        We can predict and assume that the Specific Heat Capacity of ball bearings is high such an assumption was made because it is known that metals have a high Specific Heat Capacity, because the balls are made from a metal we can assume that the Specific Heat Capacity is high. The color of the metal and the density of the metal balls bearing give the impression that it is made from copper.

Apparatus

  1. Ball bearings
  2. Thermometer
  3. Water
  4. Beaker
  5. Calorimeter
  6. Bunsen burner
  7. Platform balance
  8. hot plate

Procedure

  1. Measure the temperature of the water using a laboratory thermometer at room temperature, and record the temperature.
  2. Measure  the mass of ball bearings and calorimeter and record.
  3. Connect the balls using a string so as to make them move using the string so there will be no need in touching them.
  4. Add water into the calorimeter at room temperature.
  5. Add sufficient water into a beaker and place the ball bearings in it and then boil the water to 98°C.
  6. Leave the ball bearings for about approximately two to three minutes.
  7. Using the string remove the ball bearings quickly from the boiling water to the calorimeter.
  8. Measure the new temperature in the calorimeter.
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Obtained Results

Mass of calorimeter = 0.0978 Kg

Mass of  ball bearings = 0.1556 Kg

Mass of water = 0.2117 Kg

Initial Temperature of water at room temperature (Ti) = 11°C

Final temperature after the ball bearings were placed (Tf) = 15°C

Conclusion

Energy lost by the balls = Energy gained by water + energy gained by calorimeter

MbCb ( Tf - Ti) = MwCw ( Tf - Ti ) + McCc ( Tf – Ti )

0.1556 X Cb (16-82) = 0.20117 X 4200 (15-11) + 0.0978 X 900 (15-11)

0.1556 X Cb ( - 66 ) = 0.20117 X ...

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